KLF5 and hepatocellular carcinoma: M2‐exos alleviated the inhibition of KLF5 knockdown on the expressions of KLF5 and galectin‐3, and galectin‐3 overexpression further upregulated galectin‐3 level in sh‐KLF5 and M2‐exos co‐treated HCC cells (Figure 6D).